From 47dc76e09650a8849c58a68efcaaf8684fa69602 Mon Sep 17 00:00:00 2001
From: Alexander Zinchuk <alx.zinchuk@gmail.com>
Date: Wed, 26 May 2021 02:27:05 +0300
Subject: [PATCH] Top chat messages preload: Less, faster, exclude pinned

---
 src/config.ts                    | 2 +-
 src/modules/actions/api/chats.ts | 7 +------
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/src/config.ts b/src/config.ts
index cb20f8a3b..d38d31979 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -60,7 +60,7 @@ export const BLOCKED_LIST_LIMIT = 100;
 export const PROFILE_PHOTOS_LIMIT = 40;
 export const PROFILE_SENSITIVE_AREA = 500;
 
-export const TOP_CHAT_MESSAGES_PRELOAD_LIMIT = 25;
+export const TOP_CHAT_MESSAGES_PRELOAD_LIMIT = 20;
 export const ALL_CHATS_PRELOAD_DISABLED = false;
 
 export const ANIMATION_LEVEL_MIN = 0;
diff --git a/src/modules/actions/api/chats.ts b/src/modules/actions/api/chats.ts
index 23c3f14c4..e4a76e56b 100644
--- a/src/modules/actions/api/chats.ts
+++ b/src/modules/actions/api/chats.ts
@@ -16,7 +16,6 @@ import {
   RE_TME_LINK,
   TIPS_USERNAME,
 } from '../../../config';
-import { IS_TOUCH_ENV } from '../../../util/environment';
 import { callApi } from '../../../api/gramjs';
 import {
   addChats,
@@ -46,7 +45,7 @@ import {
   isChatSummaryOnly, isChatArchived, prepareChatList, isChatBasicGroup,
 } from '../../helpers';
 
-const TOP_CHATS_PRELOAD_PAUSE = 200;
+const TOP_CHATS_PRELOAD_PAUSE = 100;
 // We expect this ID does not exist
 const TMP_CHAT_ID = -1;
 
@@ -81,10 +80,6 @@ addReducer('preloadTopChatMessages', (global, actions) => {
       preloadedChatIds.push(chatToPreload.id);
 
       actions.loadViewportMessages({ chatId: chatToPreload.id, threadId: MAIN_THREAD_ID });
-
-      if (IS_TOUCH_ENV) {
-        actions.loadPinnedMessages({ chatId: chatToPreload.id });
-      }
     }
   })();
 });